Abstract

Combinated ligand- and pharmacophore-based virtual screening approaches were used to discover novel potential pharmacophores acting as carbonic anhydrase (CA, EC 4.2.1.1) inhibitors (CAIs). A free database of commercially available compounds was screened through drug-like filters using a four-point pharmacophore, and followed by docking calculation within the active site of an X-ray structure of isoform CA II. One compound, bearing a trifluoro-dihydroxy-propanone moiety, showed an interesting, selective inhibitory activity in low micromolar range against this isoform versus CA I. The chemical originality of this new pharmacophore can represent an important bioisosteric alternative to the sulfonamido-based functionalities, thus leading to the development of a new classes of CAIs.

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